Phenology Is a Key Component of Life on Earth

If you're not familiar with the concept of phenology, we hope to give you an introduction on today's show. Alyssa Rosemartin from the USA National Phenology Network and citizen scientist Jean Linsner, who has worked on The 606 in Chicago, talk about the importance of keeping track of nature's calendar. Petra Page-Mann from Fruition Seeds returns to explain why her company focuses on organic heirloom seeds.